Xcode 6.3 freezes/hangs after opening XIB file

Question

After upgrading to Xcode 6.3 (release version), Xcode now freeze every time I open a XIB/Storyboard file that includes an IB_DESIGNABLE view that uses a cu

Answer 1

I don't have an answer but found out that simply force-quitting and restarting will re-launch Xcode in the exact same situation. To just be able to restart Xcode, remove the folder ~/Library/Saved Application State/com.apple.dt.Xcode.savedState.